disble reported free space on network drive

I'm looking to disable the reported free disk space from a network share.
I'm running w2003 r2 with quotas, I've changed the quota email message to
say disk space instead of quota space. It's so the users don't say just up my
quota etc....
if they think the server's running low on disk space they will act instead
of shouting etc


Mark_W_IT_guy